Elastomer Or Plastic Patents (Class 384/536)
  • Patent number: 7611288
    Abstract: A resilient mount (30), such as a center bearing isolator mount includes an inner sleeve (52) into which is molded an elastomer/rubber isolator (60), and an insert (70). These components are prepared as a sub-assembly (50) and axially inserted into the opening of an outer bracket (32), whereby fingers (76) deflect radially during insertion and snap-fit radially outward once received through the bracket opening to preclude disassembly. A lower insertion force is required to assemble the components.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: November 3, 2009
    Assignee: Cooper-Standard Automotive Inc.
    Inventor: John G. Lew
  • Patent number: 7594760
    Abstract: A bearing cup having a ring and a shoulder extending radially inward from an inner surface of the ring. At least one tang extends axially outward from a first side of the ring. At least one tab extends axially outward from a second side of the ring opposite the first side. And, at least one slot is formed in the second side. The bearing cup prevents the outer race of a conventional rolling element bearing from rotating while allowing the bearing to move in an axial direction. The assembly is designed for use with either a single rolling element bearing or a set of two bearing assemblies or any number of closely spaced bearings. The advantage of the device is that it eliminates spinning of the bearing assembly outer race. The device also prevents frictional sliding between a bearing assembly outer race and a preload spring. Frictional sliding imposed on a bearing outer race can induce galling and subsequently lead to part failure.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: September 29, 2009
    Assignee: Pratt & Whitney Rocketdyne, Inc.
    Inventors: James D Goss, John M Fabry
  • Publication number: 20090214145
    Abstract: The unitary center support bearing subassembly comprises a bearing over which a plastic bearing housing has been molded while simultaneously molding the plastic bracket insert and joining members which space and fix the distance between the bearing housing and the bracket insert. The joining members are removed or broken prior to molding the overmolded rubber portion, or, if the joining member is flexible, the overmolded rubber portion is molded while maintaining the joining member.
    Type: Application
    Filed: August 29, 2008
    Publication date: August 27, 2009
    Applicant: SCHAEFFLER KG
    Inventors: Lawrence CISLO, Matthew SENDZIK
  • Patent number: 7553123
    Abstract: A support ring (1) for rolling bearings (11), especially for rolling bearings applied to rotors with very high rotation speed, such as rotors of rotary vacuum pumps, the ring comprising a pair of concentric cylindrical shells (3, 5) connected together by a plurality of oblique radial plates (9), at least one of said shells (3, 5) being circumferentially broken so as to define a plurality of shoes (7), each shoe being connected to at least one of the radial plates (9) in such a manner as to define shoe portions or arcs (A1, A2) of different length, wherein the plates (9) are resilient and allow for the radial displacement of the shoes (7) so as to restrain vibrations of the rotating portion.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: June 30, 2009
    Assignee: Varian, S.p.A.
    Inventor: Fausto Casaro
  • Patent number: 7500788
    Abstract: A center bearing assembly has an adjustable pneumatic support member for absorbing vibrations. The bearing assembly includes a bearing and a support member assembly that supports the bearing. The support member assembly includes a bladder having an interior chamber that is filled with a fluid. A bracket is provided that supports the support member assembly for pivoting movement relative thereto. A system is provided for controlling the magnitude of the fluid pressure within the interior chamber of the bladder. The system includes a plurality of sensors that generate signals that are representative of a plurality of operating conditions. A controller is responsive to the sensor signals and generates a signal to a pressure regulating device that controls the magnitude of the fluid pressure within the interior chamber of the bladder.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: March 10, 2009
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Robert G. Joyner, James A. Duggan, Johnny N. Smith
  • Patent number: 7488111
    Abstract: A composite resilient mount for rolling element bearings, comprising a composite hoop portion, and including a plurality of circumferentially dispersed inner pads and outer pads defining a plurality of arcuate beam portions disposed circumferentially between adjacent pads. The hoop portion and the inner and outer pads, may comprise a circumferentially wound fiber, such as a carbon fiber, and a resin. The inner and outer pads may be rounded, feathered or otherwise configured to eliminate edges from the inner and outer pads, thereby preventing damage to adjacent components. A method for providing damping to a rolling element bearing is also disclosed.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: February 10, 2009
    Assignee: Honeywell International Inc.
    Inventors: Robert P. Chen, Sam Shiao
  • Patent number: 7478952
    Abstract: A decoupling device for the bearing arrangement of a shaft carried in a housing, in particular a shaft of a belt-driven conical-pulley transmission with a chain that functions as the belt. The decoupling device includes an outer bearing ring configured with a circularly cylindrical outer surface and within which the shaft is mounted, and an inner surface of a housing that encloses the bearing ring outer surface. At least one radial ondular washer is arranged between the bearing ring outer surface and the housing inner surface, which allows a limited relative radial movement between the housing inner surface and the bearing ring outer surface by elastic deformation of the washer.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: January 20, 2009
    Assignee: LuK Lamellen und Kupplungsbau Betelligungs KG
    Inventors: Hartmut Faust, Oswald Friedmann, André Linnenbrügger, Ronald Glas, Christian Bauer, Hans-Walter Wodtke
  • Publication number: 20080292232
    Abstract: The invention relates to a bearing of a drive shaft (6) by means of an intermediate bearing (1) and a roller bearing (5, 10, 11) in relation to a housing (3, 7, 8), characterized in that it comprises a locking element (4) which blocks a relative movement in the rotation direction between the housing (3, 7, 8) and the intermediate bearing (1) and allows a relative movement between the housing (3, 7, 8) and the intermediate bearing (1) along the rotational axis of the shaft (6). According to the invention, the material of the locking element has a high resistance to corrosion and consists essentially of brass or stainless steel and the housing (3) comprises a plain bearing bush made of plastics (14).
    Type: Application
    Filed: September 28, 2006
    Publication date: November 27, 2008
    Inventor: Anton Wirthmann
  • Patent number: 7448808
    Abstract: An arrangement of bearing supports for a rotating shaft mounted on bearings connected to an engine stator structure by bearing supports of which at least one is made up of N>1 elements effectively acting in parallel to simultaneously connect the bearing to the structure, of which N?1 of the N elements form this connection by fusible links, is made up of a first bearing supported by a first bearing support and a second bearing supported by a second bearing support, that of the two bearing supports which makes up the N>1 elements being the second bearing support.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: November 11, 2008
    Assignee: SNECMA
    Inventors: Gael Bouchy, Alain Mazelet, Daniel Jean-Marie Martin, Patrick Charles Georges Morel
  • Publication number: 20080267549
    Abstract: In a propeller shaft for a motor vehicle, a cover is provided in an outer end of an annular support member, the cover extends to an inner side in a radial direction from an outer end of the annular support member, and the extended end sets a gap formed with respect to an outer shell of a stopper means so as to be open in an axial direction to an inlet of a labyrinth seal.
    Type: Application
    Filed: November 30, 2007
    Publication date: October 30, 2008
    Applicant: SHOWA CORPORATION
    Inventor: Toru Yamada
  • Publication number: 20080267550
    Abstract: In a propeller shaft for a motor vehicle, an outer periphery of an outer end of an annular support member is formed as an expanded poison.
    Type: Application
    Filed: November 30, 2007
    Publication date: October 30, 2008
    Applicant: SHOWA CORPORATION
    Inventors: Junichi Hirakawa, Toru Yamada
  • Publication number: 20080205809
    Abstract: A mass damper for use with a drive shaft center support bearing is located on a non-rotating portion of the bearing and is suspended on a spring element for free vibration and has a resonance that is selected to be the same as that which would otherwise be communicated to the vehicle through the bearing by the drive shaft and drivetrain components. The two embodiments are each tunable so that the damper can be set to have different resonant vibration characteristics, as required for use with different drive shaft and drivetrain configurations.
    Type: Application
    Filed: February 27, 2007
    Publication date: August 28, 2008
    Inventors: Steve X. Lin, Carlos F. Osorio, Nitin Y. Wani
  • Publication number: 20080095484
    Abstract: A center bearing support providing improved impact harshness, load capacity, and long term fatigue durability through the introduction of a tunable stopper element which allows greater control as the excitation levels of a supported shaft are increased, including an inner element installed on the inner periphery surface of an outer element fixed to a body side through an elastic body made of elastomer material and a center bearing or bushing installed on the inner peripheral surface of the inner element, wherein a stopper extending convergently is formed at the end part of the flexible main body of the elastic body, and a rib is formed between the stopper and the end part of the flexible main body at a specific phase interval, whereby, because a deformation force given by the contact of the stopper with the outer ring when an excessive displacement is input is absorbed by the displacement of the end part of the flexible main body, an abrupt rise of a spring constant can be suppressed.
    Type: Application
    Filed: October 24, 2006
    Publication date: April 24, 2008
    Applicant: Freudenberg-NOK General Partnership
    Inventors: Todd M. Wirges, Paul M. Fernandez
  • Publication number: 20070217725
    Abstract: A roller bearing assembly for supporting a shaft axially and radially in a rack includes a roller bearing with a carrier, a portion of which is supported at the rack with an element with elastomeric properties being interposed between a support for the rack and the portion of the carrier. In order to indicate a roller bearing, which supports the shaft axially and radially, and makes an inclined position of the shaft possible without causing straining of the system of shaft, roller bearing and rack, the element with elastomeric properties, viewed in the tangential (circumferential) direction of the roller bearing, has at least a first region, the stiffness of which is different from that of the remaining tangential (circumferential) region.
    Type: Application
    Filed: February 27, 2007
    Publication date: September 20, 2007
    Applicant: ZF Lenksysteme GmbH
    Inventors: Martin Budaker, Michael Jueschke, Roland Winter, Oliver Hetzel, Michael Hauck, Manfred Weller
  • Publication number: 20070211980
    Abstract: In a shaft bearing comprising outer and inner parts with an elastic element carrier disposed therebetween, the elastic element carrier includes first and second elastic elements disposed on opposite radial sides thereof and is movable with respect to one of the outer and inner parts in axial direction and with respect to the other of the outer and inner parts in radial direction, and the elastic elements disposed between the element carrier and the outer, and respectively, the inner parts have selectable elasticities so as to provide for distinct selectible radial and axial resiliencies of the shaft bearing.
    Type: Application
    Filed: February 26, 2007
    Publication date: September 13, 2007
    Inventor: Reiner Schmid
  • Patent number: 7201075
    Abstract: An electric power steering apparatus having a displacing mechanism in which a fitting hole potion is provided to a gear housing for fitting with and holding a bearing to which a worm shaft for transmitting rotating force of a steering assisting motor to a steering shaft provided with a worm wheel is fitted, the portion being formed of a pair of split members formed by splitting the portion into two, one split member being movable toward the other split member to adjust a distance between a shaft center of the worm shaft and a rotation center of the worm wheel.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: April 10, 2007
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Takashi Tsutsui, Masayuki Watanabe
  • Patent number: 7174806
    Abstract: A bearing damping system for damping vibrations and conducting heat from vibration-producing, heat-generating devices, an evacuated energy storage system including such a bearing damping system for damping vibrations produced by the rotating shaft and conducting heat from bearings and/or bearing assemblies; and a method for damping vibrations and conducting heat from vibration-producing, heat-generating devices. The bearing damping system includes one or more flexible bearing dampers in combination with one or more heat transferring rosettes. The heat transferring rosettes comprise a flexible thermally conductive member that transfers heat by conduction from the bearings, bearing assemblies and/or heat generating devices to a remote heat sink.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: February 13, 2007
    Assignee: Beacon Power Corporation
    Inventors: Norman C. Brackett, Omar M. Kabir, James F. Arseneaux
  • Patent number: 7097363
    Abstract: A seal assembly includes a shield that is mounted to an outer race on each side of a self-centering bearing and a resilient seal that is mounted between a bearing inner race and a shield on each side of the bearing. The shield and seal form a protected annulus volume adjacent the outer race and ball bearing in which grease is packed.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: August 29, 2006
    Assignee: ArvinMeritor Technology, LLC
    Inventors: Robert J. Ostrander, Dhanesh B. Krishna, Christopher John Steele, Anthony G. Lentini
  • Patent number: 7052183
    Abstract: A composite resilient mount for rolling element bearings, comprising a composite hoop portion, and including a plurality of circumferentially dispersed inner pads and outer pads defining a plurality of arcuate beam portions disposed circumferentially between adjacent pads. The hoop portion and the inner and outer pads, may comprise a circumferentially wound fiber, such as a carbon fiber, and a resin. The inner and outer pads may be rounded, feathered or otherwise configured to eliminate edges from the inner and outer pads, thereby preventing damage to adjacent components. A method for providing damping to a rolling element bearing is also disclosed.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: May 30, 2006
    Assignee: Honeywell International Inc.
    Inventors: Robert P. Chen, Sam Shiao
  • Patent number: 7044646
    Abstract: A center bearing assembly includes a generally U-shaped bracket and a support member containing a bearing. In a first embodiment, a plurality of openings is formed through the bracket. Each of the openings has axially forward and rearward tabs provided thereon which extend inwardly toward the center of the bracket. The outer surface of the support member is formed having a plurality of outwardly extending protrusions. When the support member is installed in the bracket, the outwardly extending protrusions of the support member are received within the openings formed in the legs of the bracket to prevent the support member from being withdrawn radially from the bracket. Portions of the axially facing surfaces of the support member are engaged respectively by the tabs to prevent the support member from moving axially relative to the bracket. In a second embodiment, a plurality of openings is formed through the bracket, and a pair of circumferential inwardly extending flanges is provided thereon.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: May 16, 2006
    Assignee: Tōrque-Traction Technologies LLC
    Inventors: Albert Aiken, Virginia L. McClanahan, Michael D. Penn
  • Patent number: 7004636
    Abstract: The concept of the invention is based on a machine housing with a bearing housing, the bearing seat of which is connected to a housing wall of the machine housing by a bearing housing wall provided with ribs (42, 43) and is subjected to radially directed forces (11, 44). The proposal is made that the bearing housing wall possess at least one ring shaped annular rib (42) which at least partially encompasses the bearing seat in an area (21), the angle (?) of inclination of which, relative to its original unloaded condition, would change itself to the greatest extent under load (11). Further proposed is that a plurality of additional ribs (43) run transverse to the annular rib (42). Thereby, with a relatively small consumption of material, a good shape-retention is achieved. In addition, a tilting of the bearing seat and the bearing is held to a lesser extent than is the case of conventional bearing housing structures.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: February 28, 2006
    Assignee: ZF Friedrichshafen AG
    Inventor: Arnulf Deschler
  • Patent number: 6964211
    Abstract: A vehicle steering column (10) comprises an axially extending input shaft (12) for connecting to a vehicle steering wheel. The input shaft (12) is rotatable about an axis (A) upon rotation of the steering wheel. The vehicle steering column (10) also comprises a housing (16) at least partially enclosing the input shaft (12). A bearing (92) is interposed between the housing (16) and the input shaft (12) and supports the input shaft (12) for rotation about the axis (A). The housing (16) has at least one series of axially spaced, annular ribs (52) that at least partially extend around the bearing (92). Axially adjacent annular ribs (52) are separated by an annular groove (58). A gasket (100) is interposed between the bearing (92) and the ribs (52). The gasket (100) encircles the bearing (92). The ribs (52) resist axial movement of the gasket (100).
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: November 15, 2005
    Assignee: TRW Inc.
    Inventor: Thomas R. St. Myer
  • Patent number: 6960024
    Abstract: A center bearing assembly rotatably supports an intermediate portion of a vehicle driveshaft assembly during use. The center bearing assembly includes a rigid bracket that is secured to a support surface of the vehicle, a support member that is supported within the rigid bracket, and an annular bearing that is supported within the support member for rotatably supporting the intermediate portion of the vehicle driveshaft assembly. The support member is formed from a resilient material and has a cavity formed therein. A sponge is disposed within the cavity formed in the support member. The sponge may be formed from any material that is capable of absorbing or otherwise retaining a quantity of a rheological fluid therein. A control circuit is provided for selectively generating and applying an energy field to the Theological fluid contained within the sponge and thereby varying the resistance to flow or shear thereof. As a result, the vibration dampening characteristics of the support member can be varied.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: November 1, 2005
    Assignee: Torque-Traction Technologies, Inc.
    Inventors: Scott B. Robb, James A. Duggan
  • Patent number: 6948857
    Abstract: A bearing system includes a ball-and-socket joint (1) having an annular spherical body (2) and a congruently shaped, socket-type guide ring (3) for accommodating the spherical body (2), the ball-and-socket joint (1) being radially connected to an elastic annular spring element (4) made of an elastomer material and also being radially connected to a bearing (5); the spring element (4) being connected to a housing (6) on the side facing radially away from the ball-and-socket joint (1); the bearing (5) being able to execute cardanic movements relative to the housing (6); and the facing surfaces (7, 8) of the ball-and-socket joint (1) and housing (6) being always positioned relative to each other in a manner that avoids relative cardanic movements during operation of the bearing system as intended.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: September 27, 2005
    Assignee: Carl Freudenberg KG
    Inventor: Michael Schuetz
  • Patent number: 6942451
    Abstract: A dampening system for a miniature high-speed turbojet engine provides single or multiple resilient mountings for forward and aft bearings which mount a rotor shaft. The self-induced first engine order of the rotating rotor shaft is transmitted through the forward and aft bearing and is then absorbed in the resilient mountings.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: September 13, 2005
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Eric Alexander, Anthony Jones, Mark Harris, Robert Barkley
  • Patent number: 6939052
    Abstract: A bearing with integrated mounting features is provided with a groove in at least one of the races thereof. The groove is of a shallow depth and provides a mounting location for a mounting ring of slightly different diameter than the race so as to permit the mounting and maintenance of the mounting ring by compression or interference upon the bearing, particularly during shipping and assembly. Consequently, the bearing may be preassembled even when the use of metal mounting rings is contemplated to accommodate manufacturing tolerances and conditions wherein slippage of the races is likely to occur.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: September 6, 2005
    Assignee: Precision Components, Inc.
    Inventor: David Warren Hull
  • Patent number: 6913391
    Abstract: A bearing (3) for fixing a steering shaft (1) in a housing (4) is characterized in that the inner bearing ring (8) comprises, in at least one axial direction, an integrally formed cylindrical extension (11) adjoining the raceway (9), and the inner bearing ring (8) is pressed onto the steering shaft (1) with this cylindrical extension (11) which comprises through-holes (12) through which a locking ring (13) positively engages a groove (26) of the steering shaft (1).
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: July 5, 2005
    Assignee: Ina-Schaeffler KG
    Inventors: Ulrike Weisskopf, Rainer Lutz, Jurgen Weiss
  • Patent number: 6883967
    Abstract: A center bearing assembly rotatably supports an intermediate portion of a vehicle driveshaft assembly during use. The center bearing assembly includes a rigid bracket that is secured to a support surface of the vehicle, a support member that is supported within the rigid bracket, and an annular bearing that is supported within the support member for rotatably supporting the intermediate portion of the vehicle driveshaft assembly. The support member is formed from a resilient material and has a cavity formed therein. A plurality of bladders is disposed within the cavity formed in the support member. Each of the bladders is filled with a quantity of a rheological fluid. Fluid communication between adjacent pairs of the bladders is provided by respective control valves. A control circuit is provided for selectively generating and applying an energy field to each of the control valves so as to vary the ability of the rheological fluid to flow therethrough between the associated pair of bladders.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: April 26, 2005
    Assignee: Torque-Traction Technologies, Inc.
    Inventors: Scott B. Robb, James A. Duggan
  • Patent number: 6869225
    Abstract: A center bearing support having an increased shock absorbing capability by a stopper required when the vibrating displacement of a supported shaft is increased, including an inner ring installed on the inner periphery surface of an outer ring fixed to a body side through an elastic body made of elastomer material and a center bearing installed on the inner peripheral surface of the inner ring, wherein a stopper extending convergently is formed at the end part of the flexible main body of the elastic body, and a rib is formed between the stopper and the end part of the flexible main body at a specified phase interval, whereby, because a deformation force given by the contact of the stopper with the outer ring when an excessive displacement is input is absorbed by the displacement of the end part of the flexible main body, an abrupt rise of a spring constant can be suppressed.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: March 22, 2005
    Assignee: NOK-Vibracoustic Co., LTD
    Inventor: Tsuyoshi Tatsumura
  • Patent number: 6869226
    Abstract: A drive train of a motor vehicle includes a power divider, a side shaft, a constant-velocity joint, an intermediate shaft, and a bearing unit. The intermediate shaft has first and second ends. The first end of the intermediate shaft is rotatably connected to the power divider and is mounted in the power divider with a first bearing, and the second end is located opposite the power divider and is connected to the side shaft via the constant-velocity joint. The bearing unit provides further mounting for the intermediate shaft between the first bearing and the constant-velocity joint. The bearing unit has a play oriented radially with respect to the intermediate shaft, and is able to exert a force oriented radially to the intermediate shaft on the intermediate shaft only after the play has been overcome.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: March 22, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Juergen Henkel, Thomas Keller, Andreas Kollmann, Dietmar Rill, Rolf Schroeder, Guenter Woerner
  • Patent number: 6863443
    Abstract: A bearing including an inner ring an outer ring surrounding the inner ring with a radial clearance between the inner and outer ring, an annular inner supporting body disposed in the radial clearance, and an annular outer supporting body surrounding the inner supporting body circumferentially in a torsionally fixed manner and being displaceable with respect to the inner supporting body in an axial direction. The inner and outer supporting bodies join the inner and outer rings radially in a flexibly compliant manner.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: March 8, 2005
    Assignee: Carl Freudenberg KG
    Inventor: Andreas Mahling
  • Patent number: 6817771
    Abstract: A center bearing tuned absorber assembly includes a cylindrical center bearing for supporting a rotating propeller shaft, and a tuned absorber having an inner sleeve disposed around the center bearing, and a mass-spring assembly arranged on an outer circumference of the inner sleeve. The mass-spring assembly includes a mass radially offset from, and attached to, the inner sleeve by a first damping element. The mass-spring assembly is arranged circumferentially on the inner sleeve in the direction of a first bending frequency associated with the rotating propeller shaft. The mass-spring assembly may be axially or radially offset from the center bearing.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: November 16, 2004
    Assignee: GKN Driveline North America, Inc.
    Inventor: Craig Campbell
  • Patent number: 6809898
    Abstract: A computer disk drive assembly is provided having a vibration damper for reducing transducer/track misregistration errors and acoustical noise in a computer disk drive having a rotating shaft. The disk drive generally includes a flexible interconnection between a base assembly and a bearing assembly, in combination with a rigid interconnection between the base assembly and the bearing assembly. By attenuating the amplitude of vibrations in the disk drive, the present invention allows for increased track densities and produces less acoustical noise than undamped disk drives.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: October 26, 2004
    Assignee: Maxtor Corporation
    Inventor: Vaclav Prochazka
  • Publication number: 20040170350
    Abstract: An improved bearing assembly (5) especially suitable for supporting a rotating shaft (2) or similar component which is subjected to a symmetrical or irregular loading; the bearing assembly (5) includes at least two coaxial rolling type bearings (6, 7) each of which is provided with one or more mounting seals (9, 10); each seal (9, 10) is a ring of resilient material arranged to contact the external circumference of the bearing (6, 7) so that each bearing (6, 7) is mounted upon the corresponding seal or seals (9, 10).
    Type: Application
    Filed: November 10, 2003
    Publication date: September 2, 2004
    Inventors: Steven Murray McCallum, William Alexander Wright
  • Patent number: 6749342
    Abstract: The bearing device is formed of a bearing seat, a roller bearing, and a squeeze element. The squeeze element rests over a large surface area on the outer ring of the roller bearing and rests only regionally on corresponding regions of the bearing seat. The regions are preferably linear or striplike and are oriented substantially axially. This facilitates the insertion and removal of the roller bearing into and out of the bearing seat and prevents rotation of the outer bearing ring even if the bearing seats are provided with relatively generous tolerances.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: June 15, 2004
    Assignee: Memminger-IRO GmbH
    Inventors: Eberhard Leins, Hermann Schmodde, Attila Horvath
  • Publication number: 20040109625
    Abstract: An intermediate bearing for a driveline of a commercial vehicle has a housing (7) with a stirrup-shaped cross-section. The housing (7) has a fixing face (12) formed of two straight portions (8, 9) and a first arched portion (10). A bearing member (15) is arranged between the portions (8, 9, 10). The bearing member (15) is rubber and is connected to the fixing face (12) by vulcanization. A locking element (23) bridges the space between the two straight portions (8, 9). The locking member (23) is attached to the bearing member (15). The bearing member (15) encloses a supporting ring (16) which serves to receive a rolling contact bearing. The locking element (23) is adjustable for the purpose of setting a pre-tension of the bearing member (15) towards the longitudinal axis (18) of the bore (17) of the supporting ring (16). The locking element (23) can be connected to the housing (7) after the required pre-tension has been set.
    Type: Application
    Filed: October 16, 2003
    Publication date: June 10, 2004
    Inventors: Oliver Borsch, Harald Dierich, Ralf Sedlmeier
  • Patent number: 6715925
    Abstract: An annular element for a rolling bearing comprises a cylindrical surface around the circumference of which a groove, the radial and axial depth of which are variable around the circumference, is formed. The cylindrical surface is suitable for being over-molded with a plastics material to form a body which is fixed firmly for rotation with the annular element and has a plastics projection complementary with the groove. The projection can cooperate with the groove to prevent relative rotation between the annular element and the body.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: April 6, 2004
    Assignee: SKF Industrie S.P.A.
    Inventors: Gianfranco Pairone, Francesco Gallucci
  • Patent number: 6700255
    Abstract: A bearing system that includes a bearing 50 supported in a flexible bearing bracket, for example for use in fractional horsepower shaded pole type electric motors. The bearing system is self aligning, the bracket being able to deflect to compensate for deviations in the radial alignment of the rotor shaft. A rotation lock restrains the bearing against rotation within the bracket. In the preferred embodiment the bracket is composed of an elastomer and the bearing is composed of a high performance plastic polymer, so that the bearing system is non-lubricating.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: March 2, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Christopher Scott Stenta
  • Publication number: 20040022467
    Abstract: A center bearing assembly rotatably supports an intermediate portion of a vehicle driveshaft assembly during use. The center bearing assembly includes a rigid bracket that is secured to a support surface of the vehicle, a support member that is supported within the rigid bracket, and an annular bearing that is supported within the support member for rotatably supporting the intermediate portion of the vehicle driveshaft assembly. The support member is formed from a resilient material and has a cavity formed therein. A sponge is disposed within the cavity formed in the support member. The sponge may be formed from any material that is capable of absorbing or otherwise retaining a quantity of a rheological fluid therein. A control circuit is provided for selectively generating and applying an energy field to the Theological fluid contained within the sponge and thereby varying the resistance to flow or shear thereof. As a result, the vibration dampening characteristics of the support member can be varied.
    Type: Application
    Filed: April 4, 2003
    Publication date: February 5, 2004
    Inventors: Scott B. Robb, James A. Duggan
  • Patent number: 6682088
    Abstract: A bicycle head tube and ball bearing mounting arrangement in which two gasket rings are respectively mounted in expanded top and bottom receiving portions of a head tube to support a respective ball bearing assembly in each end of the head tube, which ball bearing assembly supports a handlebar stem and front fork assembly in the head tube, the gasket rings each having a curved inner diameter fitted over the bottom edge of the respective ball bearing assembly to prevent direct contact of the bottom edge of the respective ball bearing assembly from direct contact with the respective expanded receiving portion of the head tube.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: January 27, 2004
    Inventor: Wen-Hwa Lin
  • Patent number: 6672768
    Abstract: An intermediate bearing for a driveline of a commercial vehicle has a housing (7) with a stirrup-shaped cross-section. The housing (7) has a fixing face (12) formed of two straight portions (8, 9) and a first arched portion (10). A bearing member (15) is arranged between the portions (8, 9, 10). The bearing member (15) is rubber and is connected to the fixing face (12) by vulcanization. A locking element (23) bridges the space between the two straight portions (8, 9). The locking member (23) is attached to the bearing member (15). The bearing member (15) encloses a supporting ring (16) which serves to receive a rolling contact bearing. The locking element (23) is adjustable for the purpose of setting a pre-tension of the bearing member (15) towards the longitudinal axis (18) of the bore (17) of the supporting ring (16). The locking element (23) can be connected to the housing (7) after the required pre-tension has been set.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: January 6, 2004
    Assignee: Spicer Gelenkwellenbau GmbH & Co. KG
    Inventors: Oliver Börsch, Harald Dierich, Ralf Sedlmeier
  • Publication number: 20030219183
    Abstract: A bearing system includes a ball-and-socket joint (1) having an annular spherical body (2) and a congruently shaped, socket-type guide ring (3) for accommodating the spherical body (2), the ball-and-socket joint (1) being radially connected to an elastic annular spring element (4) made of an elastomer material and also being radially connected to a bearing (5); the spring element (4) being connected to a housing (6) on the side facing radially away from the ball-and-socket joint (1); the bearing (5) being able to execute cardanic movements relative to the housing (6); and the facing surfaces (7, 8) of the ball-and-socket joint (1) and housing (6) being always positioned relative to each other in a manner that avoids relative cardanic movements during operation of the bearing system as intended.
    Type: Application
    Filed: March 31, 2003
    Publication date: November 27, 2003
    Applicant: Carl Freudenberg KG
    Inventor: Michael Schuetz
  • Publication number: 20030202726
    Abstract: A center bearing assembly rotatably supports an intermediate portion of a vehicle driveshaft assembly during use. The center bearing assembly includes a rigid bracket that is secured to a support surface of the vehicle, a support member that is supported within the rigid bracket, and an annular bearing that is supported within the support member for rotatably supporting the intermediate portion of the vehicle driveshaft assembly. The support member is formed from a resilient material and has a cavity formed therein. A plurality of bladders is disposed within the cavity formed in the support member. Each of the bladders is filled with a quantity of a rheological fluid. Fluid communication between adjacent pairs of the bladders is provided by respective control valves. A control circuit is provided for selectively generating and applying an energy field to each of the control valves so as to vary the ability of the rheological fluid to flow therethrough between the associated pair of bladders.
    Type: Application
    Filed: April 4, 2003
    Publication date: October 30, 2003
    Inventors: Scott B. Robb, James A. Duggan
  • Patent number: 6634793
    Abstract: A shaft suspension system has a rigid inner ring designed for receiving a shaft bearing, a rigid outer ring surrounding the inner ring with radial clearance, a resilient connecting member bridging the clearance between inner ring and outer ring, and a bearing support which extends about the outer ring and includes lugs for fastening it to the bottom of a motor vehicle. The bearing support is composed of a support plate on which the lugs are formed, a loop and an elastomer member in which the loop is embedded. The loop is made from one or several strands of steel wire or yarns of natural or synthetic fibers, suspended from the support plate and extends about a part of the outer ring. This suspension results in a specifically good structure-borne noise insulation and allows axial movements of the suspended shaft which may occur, for example, on a vehicle running on a rough road.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: October 21, 2003
    Assignee: SGF Süddeutsche Gelenkscheibenfabrik GmbH & Co. KG
    Inventor: Dirk Zimmermann
  • Patent number: 6572271
    Abstract: An elastic bearing suspension for a shaft bearing (1) is described. The shaft bearing (1) is connected on the outside radially to at least one stop buffer (2) made of an elastomer material, the stop buffer (2) being connected to a first supporting ring (5) arranged adjacent to and at an axial distance (4) from the shaft bearing (1) by way of at least one fold (3) made of an elastomer material which extends in the axial direction and has a V-shape as seen in the longitudinal sectional of the shaft bearing (1), the first supporting ring (5) being connected to one of the end faces (6) of a stop sleeve (7), the other end face (8) of the stop sleeve (7) surrounding the stop buffer (2) on the outer circumference at a radial distance.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: June 3, 2003
    Assignee: Firma Carl Freudenberg
    Inventors: Karl-Heinz Bade, Michael Schütz, Alexander Meier
  • Publication number: 20030091254
    Abstract: A bearing including an inner ring an outer ring surrounding the inner ring with a radial clearance between the inner and outer ring, an annular inner supporting body disposed in the radial clearance, and an annular outer supporting body surrounding the inner supporting body circumferentially in a torsionally fixed manner and being displaceable with respect to the inner supporting body in an axial direction. The inner and outer supporting bodies join the inner and outer rings radially in a flexibly compliant manner.
    Type: Application
    Filed: November 7, 2002
    Publication date: May 15, 2003
    Applicant: Carl Freudenberg KG
    Inventor: Andreas Mahling
  • Patent number: 6563243
    Abstract: A spindle motor comprising a double row bearing device including a shaft, a sleeve surrounding the shaft, and a pair of upper and lower rows of balls, a cylindrical bearing holder extending upwardly from a base of the spindle motor for accommodating the sleeve within a vertical bore of the holder, and a rotor hub mounted on the shaft for journaling the rotor hub rotatably on the base, the spindle motor is characterized in that a reduced inner diameter portion of an inner diameter smaller than the outer diameter of the sleeve is formed on the inner surface of the bore of the bearing holder between the upper and lower larger inner diameter portions to urge the sleeve inwardly by the reduced inner diameter portion to deform it elastically to form a squeezed portion protruding inwardly of the sleeve between the upper and lower rows of balls.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: May 13, 2003
    Assignee: Minebea Kabushiki-Kaisha
    Inventors: Rikuro Obara, Hiroshi Yoshikawa
  • Patent number: 6550567
    Abstract: On the outer periphery of a bearing 10 for supporting a worm 71 rotating interlocked with the rotation of a steering assist motor 6 inside the housing 8, elastic members 20 are provided to restrain the bearing 10 from moving in the radial direction thereof. The force for the restraint by the elastic members 20 is made different depending on the position in the peripheral direction thereof. A portion of the elastic member, wherein the force for restraining the movement of the bearing 10 in the radial direction is small, energizes the worm 71 to the meshing position of the worm 71 and a worm wheel 72. Another portion, wherein the force for restraining the movement is large, restrains the worm 71 from moving along the lead of the worm wheel 72. With this configuration, the elastic members 20 can reduce the amount of the backlash at the meshing portion of the worm 71 and the worm wheel 72, and can make the rotation torque applied to the meshing portion of the worm gears relatively small.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: April 22, 2003
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Tetsuya Murakami, Takeo Iino, Masanori Kobayashi, Akihiko Shiina, Yoshio Ito, Tatsuo Otsuka, Takayuki Todaka
  • Publication number: 20030072510
    Abstract: A shaft suspension comprises a rigid inner ring designed for receiving a shaft bearing, a rigid outer ring surrounding the inner ring with radial clearance, a resilient connecting member bridging the clearance between inner ring and outer ring, and a bearing support which extends about the outer ring and includes lugs for fastening it to the bottom of a motor vehicle. The bearing support is composed of a support plate on which the lugs are formed, a loop and an elastomer member in which the loop is embedded. The loop is made from one or several strands of steel wire or yarns of natural or synthetic fibers, suspended from the support plate and extends, in contrast to the latter, about a part of the outer ring. This suspension results in a specifically good structure-borne noise insulation and allows axial movements of the suspended shaft such as are occurring for example in the case of a vehicle running on a rough road.
    Type: Application
    Filed: January 16, 2002
    Publication date: April 17, 2003
    Applicant: SGF Suddeutsche Gelenkscheibenfabrik GmbH & Co. KG
    Inventor: Dirk Zimmermann
  • Patent number: 6543791
    Abstract: This invention relates to a hub mounted shock absorber suitable for use in the wheels of in-line skates or other small wheel transportation devices such as scooters, street skis, etc. and to in-line skates utilizing wheels with such hub mounted shock absorbers. The hub mounted shock absorbers include an outer tube with an elastomer, preferably a low durometer elastomer between the outer tube and the axle of the wheel. The elastomer is prefereably sandwiched between the inner and outer tube with the axle passing through the inner tube. Openings may be selectively provided in the outer tube to further reduce the stiffness of the elastomer and flexure or other appropriate mechanism may be included which result in minimum stiffness for the shock absorber in the vertical direction only.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: April 8, 2003
    Inventor: Elmer Lee